UCC28742 Datasheet (Texas Instruments) - High-Efficiency Flyback Controller

UCC28742, High-Efficiency Flyback Controller

The UCC28742 off-line flyback controller is a highly integrated, 6-pin secondary-side regulated PWM controller for efficient AC-to-DC power supplies.

It is an isolated-flyback power-supply controller that provides Constant-Voltage (CV) using an optical coupler to improve transient response to large-

UCC28742 Features

* 1 Opto-Coupled Feedback Enables up to 1% Regulation

* Accurate Current Limit with Overload Timeout Protection and Delayed Hiccup Response

* Resonant-Ring Valley-Switching Operation for Highest Overall Efficiency

* 80-kHz Maximum Switching Frequency

* Frequenc